bibliothek.extension.gui.dock.theme.smooth

Class SmoothChanger

java.lang.Object

bibliothek.extension.gui.dock.theme.smooth.SmoothChanger

All Implemented Interfaces:

ActionListener, EventListener

public abstract class SmoothChanger
extends Object
implements ActionListener

A class which counts milliseconds from 0 to duration or in the other direction. This class contains an array of states: one state is counted upwards (the destination()), all the other states are counted downwards. Clients can use this class to smoothly switch between different states.
This class works on the EDT, no new threads are created.

Author:

Benjamin Sigg

Constructor Summary

Constructors

Constructor and Description
SmoothChanger(int states) Constructor, sets duration to 250 milliseconds.
SmoothChanger(int duration, int states) Constructs a new changer.

Method Summary

Modifier and Type	Method and Description
void	actionPerformed(ActionEvent e)
protected abstract int	destination() The direction of the change.
int	getDuration() Gets the duration of a transition
boolean	isRunning() Tells whether this changer is currently active or not.
protected abstract void	repaint(int[] current) Triggered during a transition when the counter has been changed
void	setDuration(int duration) Sets the duration of the transition.
void	trigger() Starts a transition

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SmoothChanger

public SmoothChanger(int states)

Constructor, sets duration to 250 milliseconds.

Parameters:

states - the number of states this changer can have

SmoothChanger

public SmoothChanger(int duration,
                     int states)

Constructs a new changer.

Parameters:

duration - the duration of one transition, should not be less than 1

states - the number of states this changer can have, should at least be 2

Method Detail

destination

protected abstract int destination()

The direction of the change. The counter of for the state destination() will always rise, while the other counters decent.

Returns:

the favored state

repaint

protected abstract void repaint(int[] current)

Triggered during a transition when the counter has been changed

Parameters:

current - for each state a number between 0 and getDuration(), the state with the highest number is the best selected state

setDuration

public void setDuration(int duration)

Sets the duration of the transition.

Parameters:

duration - the duration

Throws:

IllegalStateException - if the duration is less than 1

isRunning

public boolean isRunning()

Tells whether this changer is currently active or not.

Returns:

true if active, false if not

getDuration

public int getDuration()

Gets the duration of a transition

Returns:

the duration

See Also:

setDuration(int)

trigger

public void trigger()

Starts a transition

actionPerformed

public void actionPerformed(ActionEvent e)

Specified by:

actionPerformed in interface ActionListener